I'm surprised just how little reporting there is on the phenomenon which has apparently been happening for the last few years. But it's very well documented on YouTube. Although it's difficult to find any which aren't mixed up with claims of aliens and the second coming of Christ.

Loud eery noises are being heard all over the world. Often accompanied by strong vibrations, strong enough to set off car alarms, yet not picked up as seismic activity.

My personal hypothesis: Experimental government aircraft. The first noise in this video reminds me of something I was researching awhile ago about concealed government aircraft that propel themselves at record speeds using explosions rather than a constant jet.

If there's evidence that this has been happening for ages, it's more likely that this is some yet unknown natural phenomenon.

At 8/31/2013 1:15:10 AM, Mirza wrote:Yes. Other than that - anecdotal evidence is not enough to prove these sounds are anything but naturally occurring phenomena or from man-made facilities.

Can you explain why it's the most likely candidate?

That's the most accurate scientific explanation, thus far. Keep in mind that other explanations are possible, but since there is no evidence for them, there's no reason to believe in them rather than what seems to be based on observations.

The sound has been going on for 20 minutes. They thought it was a tornado. Many people called in. No tornado spotted. A single sudden flash of light. And then the sound dissipates within a few seconds.

There's another clip in this video with flashing lights, as far as I've seen (still watching). But I suspect it was just an effect with the camera.

At 8/31/2013 1:31:06 AM, Mirza wrote:That's the most accurate scientific explanation, thus far. Keep in mind that other explanations are possible, but since there is no evidence for them, there's no reason to believe in them rather than what seems to be based on observations.

At 8/31/2013 1:31:06 AM, Mirza wrote:That's the most accurate scientific explanation, thus far. Keep in mind that other explanations are possible, but since there is no evidence for them, there's no reason to believe in them rather than what seems to be based on observations.

That doesn't answer my question.

You asked why it is the most likely candidate. Based on observations, scientific facts, and other empirical evidence, this phenomenon is the most likely candidate because no other explanations are evidential or plausible.

At 8/31/2013 1:38:45 AM, Mirza wrote:You asked why it is the most likely candidate. Based on observations, scientific facts, and other empirical evidence, this phenomenon is the most likely candidate because no other explanations are evidential or plausible.

Yeah, I get that. I am specifically asking for what observations, scientific facts and other empirical evidence you are referring to.